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How many gallons of water is needed to fill a pool 15' diameter by 42 deep?
Wiki User
∙ 15y ago
Is 42 in inches or feet? I've answered the problem below for inches since that makes more sense for a pool. Volume of pool = area of pool * depth V = pi*r^2 * depth = 3.14*7.5*7.5*3.5 = 618 cubic feet The volume of 1 gallon of water = 0.133680556 cubic feet. Therefore, the # of gallons of water in the pool = 618/0.133680556 = 4623 gallons of water In actually, because of significant digits in the depth and diameter of pool, the answer would be approximately 4600 gallons of water
Wiki User
∙ 15y ago
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